21009996

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27791}}^1$

素因数の和:27811

約数の個数: 48

約数和(自身を含む): 62254080

約数和(自身を除く): 41244084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27791, 55582, 83373, 111164, 166746, 194537, 250119, 333492, 389074, 500238, 583611, 750357, 778148, 1000476, 1167222, 1500714, 1750833, 2334444, 3001428, 3501666, 5252499, 7003332, 10504998, 21009996]

約数ペア:

[(1, 21009996), (2, 10504998), (3, 7003332), (4, 5252499), (6, 3501666), (7, 3001428), (9, 2334444), (12, 1750833), (14, 1500714), (18, 1167222), (21, 1000476), (27, 778148), (28, 750357), (36, 583611), (42, 500238), (54, 389074), (63, 333492), (84, 250119), (108, 194537), (126, 166746), (189, 111164), (252, 83373), (378, 55582), (756, 27791)]